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20:27 EDT 21st September 2019 | BioPortfolio

Maybe Innate PubMed articles on BioPortfolio. Our PubMed references draw on over 21 million records from the medical literature. Here you can see the latest Maybe Innate articles that have been published worldwide.

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Showing "Maybe Innate" PubMed Articles 1–25 of 1,200+

Role of peptide transporter 2 and MAPK signaling pathways in the innate immune response induced by bacterial peptides in alveolar epithelial cells.

The innate immune response induced by bacterial peptidoglycan peptides, such as γ-d-glutamyl-meso-diaminopimelic acid (iE-DAP), is an important host defense system. However, little is known about the innate immune response in the lung alveolar region. In this study, we examined induction of the innate immune response by iE-DAP in human alveolar epithelial cell lines, NCI-H441 (H441) and A549.


Activation and counteraction of antiviral innate immunity by KSHV: an Update.

The innate immune responses triggering production of type I interferons and inflammatory cytokines constitute a nonspecific innate resistance that eliminates invading pathogens including viruses. The activation of innate immune signaling through pattern recognition receptors (PRRs) is by sensing pathogen-associated molecular patterns derived from viruses. According to their distribution within cells, PRRs are classified into three types of receptors: membrane, cytoplasmic, and nuclear. Kaposi's sarcoma-asso...

Revealed heterogeneity in rheumatoid arthritis based on multivariate innate signature analysis.

A growing body of evidence highlights the persistent activation of the innate immune system and type I interferon (IFN) signature in the pathogenesis of rheumatoid arthritis (RA) and its association with disease activity. Since the recent study revealed heterogeneity in the IFN signature in RA, we investigated for the first time the heterogeneity in innate signature in RA.


CD89 Is a Potent Innate Receptor for Bacteria and Mediates Host Protection from Sepsis.

Direct bacterial recognition by innate receptors is crucial for bacterial clearance. Here, we show that the IgA receptor CD89 is a major innate receptor that directly binds bacteria independently of its cognate ligands IgA and c-reactive protein (CRP). This binding is only partially inhibited by serum IgA and induces bacterial phagocytosis by CD11c dendritic cells and monocytes and/or macrophages, suggesting a physiological role in innate host defense. Blood phagocytes from common variable immunodeficiency ...

Simultaneous blocking of CD47 and PD-L1 increases innate and adaptive cancer immune responses and cytokine release.

Treatment multiple tumors by immune therapy can be achieved by mobilizing both innate and adaptive immunity. The programmed death ligand 1 (PD-L1; or CD274, B7-H1) is a critical "don't find me" signal to the adaptive immune system. Equally CD47 is a critical "don't eat me" signal to the innate immune system and a regulator of the adaptive immune response.

Innate immune response in retinal homeostasis and inflammatory disorders.

Innate immune cells such as neutrophils, monocyte-macrophages and microglial cells are pivotal for the health and disease of the retina. For the maintenance of retinal homeostasis, these cells and immunosuppressive molecules in the eye actively regulate the induction and the expression of inflammation in order to prevent excessive activation and subsequent tissue damage. In the disease context, these regulatory mechanisms are modulated genetically and/or by environmental stimuli such as damage-associated mo...

Innate Lymphoid Cells in Mucosal Immunity.

Innate lymphoid cells (ILCs) are innate counterparts of T cells that contribute to immune responses by secreting effector cytokines and regulating the functions of other innate and adaptive immune cells. ILCs carry out some unique functions but share some tasks with T cells. ILCs are present in lymphoid and non-lymphoid organs and are particularly abundant at the mucosal barriers, where they are exposed to allergens, commensal microbes, and pathogens. The impact of ILCs in mucosal immune responses has been ...

Regulating the development of pulmonary Group 2 innate lymphoid cells.

Group 2 innate lymphoid cells (ILC2s) belong to the family of innate lymphoid cells and are innately committed to type 2 immune responses. In the lungs, ILC2s are the predominant population of innate lymphoid cells (ILCs) and their development is orchestrated by several different transcription factors which ensure lineage commitment by intrinsic regulation. ILC2s are present in the lungs from the fetal period onwards and are thus exposed to extrinsic regulation due to the airways' continuous morphological c...

The heterogeneous nuclear ribonucleoprotein hnRNPM inhibits RNA virus-triggered innate immunity by antagonizing RNA sensing of RIG-I-like receptors.

Recognition of viral RNA by the retinoic acid-inducible gene-I (RIG-I)-like receptors (RLRs), including RIG-I and MDA5, initiates innate antiviral responses. Although regulation of RLR-mediated signal transduction has been extensively investigated, how the recognition of viral RNA by RLRs is regulated remains enigmatic. In this study, we identified heterogeneous nuclear ribonucleoprotein M (hnRNPM) as a negative regulator of RLR-mediated signaling. Overexpression of hnRNPM markedly inhibited RNA virus-trigg...

Autophagy in Pulmonary Innate Immunity.

Autophagy is a major intracellular digestion system that delivers cytoplasmic components for degradation and recycling. In this capacity, autophagy plays an important role in maintaining cellular homeostasis by mediating the degradation of cellular macromolecules and dysfunctional organelles and regeneration of nutrients for cell growth. Autophagy is important in innate immunity, as it is responsible for the clearance of various pathogens. Deficiency of intracellular autophagy can result in exaggerated acti...

Role of innate immune cells in metabolism: from physiology to type 2 diabetes.

Growing evidence suggests that components of the innate immune system play a crucial role in regulating metabolic homeostasis. Macrophages were the primary immune cells to be described in both the white adipose tissue and the pancreatic islets. Therein, their functions, beneficial or detrimental, are extending under steady state and in the context of obesity-induced type 2 diabetes. Other populations, including innate lymphoid cells, are emerging as key sentinels of metabolic tissues and privileged partners...

Activation through toll-like receptor 2 on group2 innate lymphoid cells can induce asthmatic characteristics.

Type 2 innate lymphoid cells (ILC2s) are one of the sources of IL-5 and IL-13 in allergic airway inflammation. Innate immune receptors such as Toll-like receptors (TLRs) expressed on epithelial cells could contribute to ILC2 activation through IL-33 production, but a direct effect of TLRs on ILC2s remains to be elucidated.

Immune memory characteristics of innate lymphoid cells.

Immune memory is essential for host defense against invaders and it is also used as a basis for vaccine development. For these reasons, it is crucial to understand its molecular basis. In this review, we describe recent findings on memory characteristics of innate-like lymphocytes and its contribution to host protection.(Figure is included in full-text article.) RECENT FINDINGS: In addition to adaptive immune cells, innate cells are also able to mount memory responses through a process called 'trained immun...

Innate lymphoid cells and cancer at border surfaces with the environment.

Innate lymphoid cells (ILC) are a recently identified group of innate lymphocytes. ILC are subdivided into cytotoxic ILC (i.e., conventional natural killer (NK) cells) and helper ILC. Helper ILC are tissue-resident cells that have been involved in various physiological and pathological processes of organs and tissues. While their roles during inflammation are well studied, their contribution to tumor immunity is not well known. Here, we will provide an overview of the various helper ILC subsets, their devel...

Innate lymphoid cells in intestinal cancer development.

Colorectal cancer (CRC) is a highly prominent cause of cancer-related deaths worldwide. Although the functions of immune cells in the colorectal tumor microenvironment are complex and heterogeneous, dysregulated changes in the composition and activation state of immune cells are believed to represent key events supporting the establishment of pro- or anti-tumorigenic immune states. Recently, innate lymphoid cells (ILCs) emerged as central innate immune mediators during both gastrointestinal homeostasis and ...

Innate Lymphoid Cells of the Lung.

Although, as the major organ of gas exchange, the lung is considered a nonlymphoid organ, an interconnected network of lung-resident innate cells, including epithelial cells, dendritic cells, macrophages, and natural killer cells is crucial for its protection. These cells provide defense against a daily assault by airborne bacteria, viruses, and fungi, as well as prevent the development of cancer, allergy, and the outgrowth of commensals. Our understanding of this innate immune environment has recently chan...

Innate immunity signalling and membrane trafficking.

The mammalian innate immune system serves as the front line of the host to eliminate invading pathogens. The receptors that sense invading pathogens or the pathogen-associated molecules localized at various membrane compartments that include the plasma membrane, endosomes, and the endoplasmic reticulum. Intriguingly, growing evidence indicates that the sites of pathogen detection do not always represent the site where innate immune signal is triggered. Rather, pathogen detection often induces translocation ...

The Inflammasome: More Than a Protective Innate Immune Mechanism.

Little is known about the inflammasome beyond its function in innate immune response. In this issue of Immunity, Tyrkalska et al. report that the inflammasome regulates the balance between erythroid and myeloid differentiation in model systems, providing insights into hematopoietic lineage bias associated with inflammatory conditions.

Pattern recognition receptors in Drosophila immune responses.

Insects, which lack the adaptive immune system, have developed sophisticated innate immune system consisting of humoral and cellular immune responses to defend against invading microorganisms. Non-self recognition of microbes is the front line of the innate immune system. Repertoires of pattern recognition receptors (PRRs) recognize the conserved pathogen-associated molecular patterns (PAMPs) present in microbes, such as lipopolysaccharide (LPS), peptidoglycan (PGN), lipoteichoic acid (LTA) and β-1, 3-gluc...

Pattern recognition receptors and their roles on the innate immune system of mud crab (Scylla paramamosain).

The innate immune system is the first line of defense protecting the hosts against invading pathogens. Mud crab (Scylla paramamosain) is widely distributed in China and Indo-west Pacific countries, which develops a very complicated innate immune system against pathogen invasions. Innate immunity involves the humoral and cellular responses that are linked to the pattern recognition receptors (PRRs). PRRs initially recognize the infection and trigger the activation of signaling cascades, leading to transcript...

Immunophenotyping of Human Innate Lymphoid Cells.

In the last years, the family of innate lymphocytes has been growing following the discovery of innate lymphoid cells (ILCs). ILCs are lymphocytes able to rapidly produce a wide range of soluble mediators in an antigen-independent fashion. So far, three main subsets of ILCs have been discovered, ILC1, ILC2, and ILC3, expressing respectively the transcription factors T-bet, GATA3, and Rorγt and secreting distinct types of cytokines. After their discovery, several studies showed that different pathologies, s...

Expression Kinetics and Innate Immune Response after Electroporation and LNP-Mediated Delivery of a Self-Amplifying mRNA in the Skin.

In this work, we studied the expression kinetics and innate immune response of a self-amplifying mRNA (sa-RNA) after electroporation and lipid-nanoparticle (LNP)-mediated delivery in the skin of mice. Intradermal electroporation of the sa-RNA resulted in a plateau-shaped expression, with the plateau between day 3 and day 10. The overall protein expression of sa-RNA was significantly higher than that obtained after electroporation of plasmid DNA (pDNA) or non-replication mRNAs. Moreover, using IFN-β reporte...

Trained innate immunity and resistance to Mycobacterium tuberculosis infection.

Some individuals, even when heavily exposed to an infectious tuberculosis patient, develop neither active nor latent tuberculosis infection (LTBI). This 'early clearance' of Mycobacterium tuberculosis is associated with a history of bacillus Calmette-Guérin (BCG) vaccination. As BCG vaccination can boost innate immune responses through a process termed 'trained immunity', we hypothesize that BCG-induced trained innate immunity contributes to early clearance of M. tuberculosis.

NHR-14 loss of function couples intestinal iron uptake with innate immunity in through PQM-1 signaling.

Iron is essential for survival of most organisms. All organisms have thus developed mechanisms to sense, acquire and sequester iron. In s, iron uptake and sequestration are regulated by HIF-1. We previously showed that mutants are developmentally delayed when grown under iron limitation. Here we identify , encoding a nuclear receptor, in a screen conducted for mutations that rescue the developmental delay of mutants under iron limitation. loss upregulates the intestinal metal transporter SMF-3 to increas...

Nrf2 Involvement in Chemical-Induced Skin Innate Immunity.

Exposure to certain chemicals disturbs skin homeostasis. In particular, protein-reactive chemical contact sensitizers trigger an inflammatory immune response resulting in eczema and allergic contact dermatitis. Chemical sensitizers activate innate immune cells which orchestrate the skin immune response. This involves oxidative and inflammatory pathways. In parallel, the Nrf2/Keap1 pathway, a major ubiquitous regulator of cellular oxidative and electrophilic stress is activated in the different skin innate i...


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